What Chassis do I have

[DTony]

Hi, I have a 2003 National SeaBreeze 1311 on a Ford Super Duty V10 Chassis. I recently had the catalytic converter stolen while the RV was in a commercial storage facility. The shop that is replacing the converter needs to know what chassis is under my RV. The shop says it probably is either a F350 or E350. This information is important because there are two different converters depending on the exact chassis number. Does anyone know which chassis I have or where on the RV I can find this information. Thanks in advance.

Tony

[JoeH]

Back when I had a v-10 F53 based motorhome, I found that parts listings for the
F-550 were equivalent. Many shops don't have references for F53, but it they plug in F-550, bingo !

[grldst]

Years back I had a 1991 Coachman Classic. It had a 460 ford. Performed well as long as all the spark plug wires were sound. Heat in the dog house was a bear. If memory serves….it was on an Oshkosh chassis.

[atsrmf]

My motorhome is a 1987 with a 1986 driveline. I wish it had fuel injection, but the Holley 4-bbl works fine. The frame sure looks heavy duty, as it should since the vehicle weighs 11,100 pounds.
The 460 cranks 3,000 RPM at a little over 60.

[RLS7201]

Bruce Brown wrote:

atsrmf wrote:
Getting back to the original topic, I was curious as to the manufacturer for the frame of my Gulfstream Class A. It turned out to be a John Deere chassis. I had no idea that John Deere made a chassis, but the do for trucks and RVs.

They did years ago.

If I remember correctly, and I very well could be wrong, it was basically a rebadged Ford chassis.

The John Deere chassis used a Ford 460 with carb & C6 tranny until 1990.
1991 had a EFI 460 & C6 tranny. 1991 was the last year for John Deer's class A chassis.
Freightliner is now the John Deere OEM parts supplier.


Richard

[Bruce_Brown]

atsrmf wrote:
Getting back to the original topic, I was curious as to the manufacturer for the frame of my Gulfstream Class A. It turned out to be a John Deere chassis. I had no idea that John Deere made a chassis, but the do for trucks and RVs.

They did years ago.

If I remember correctly, and I very well could be wrong, it was basically a rebadged Ford chassis.

[atsrmf]

Getting back to the original topic, I was curious as to the manufacturer for the frame of my Gulfstream Class A. It turned out to be a John Deere chassis. I had no idea that John Deere made a chassis, but the do for trucks and RVs.

[4x4van]

chuckftboy wrote:
Tony, there is really nothing special about an OEM converter, Ford doesn't build them anyway, they are provided by one of their vendors. I think the major concern is one sized large enough for your 8-cylinder engine and fits in the space of the original.

Sadly, here in Commiefornia, that is not the case. There are very few aftermarket catalytic converters that CARB allows. Most vehicles MUST use only OEM converters in CA.

[wildmanbaker]

Ford no longer has a contract with manufacturers for a replacement Cat, but they are made that fit the 2 valve V-10s but they are not tested for performance. The difference between 2 valve and 3 valve V-10s is the front end of the 2 valve has a tringle 3 bolt round hole flange, the 3 valve had an oblong 4 bold flange. There are about 4 exhaust manufacturers that make them for the 2 valve. Prices range from just over $500, to $1,100, they all appear to be the same.

[AllegroD]

wolfe10 wrote:

AllegroD wrote:

I don't follow. What has a converter to do with the engine and what does the engine have to do with a converter?

I believe the reference is to the CATALYTIC CONVERTER, not electric converter (120 VAC to 12 VDC).

Yep! I was definitely thinking electric!

[Chum_lee]

Google is your friend.

Search: "2003 Ford F-53 CARB approved direct fit catalytic converter"

I see at least 1 option, most of them are about $1,100 or more. OUCH! Sorry about that. Depending on how much damage was done when it was stolen, it might be better if the shop who installs the converter also buys it, and, has it shipped directly to their shop prior to installation.

Chum lee

[wolfe10]

AllegroD wrote:

I don't follow. What has a converter to do with the engine and what does the engine have to do with a converter?

I believe the reference is to the CATALYTIC CONVERTER, not electric converter (120 VAC to 12 VDC).

[way2roll]

AllegroD wrote:

chuckftboy wrote:
Tony, there is really nothing special about an OEM converter, Ford doesn't build them anyway, they are provided by one of their vendors. I think the major concern is one sized large enough for your 8-cylinder engine and fits in the space of the original.

I don't follow. What has a converter to do with the engine and what does the engine have to do with a converter?

It's about capacity. You couldn't put a 4 cyclinder miata cat on a Ford v8. It has to be sized appropriately for the volume and velocity of the exhaust. Not to mention the pipe sizing would be very different. Without sufficient exhaust flow, you restrict the engine, cause back pressure and can cause severe damage if it ran at all. Suck, bam, blow. Intake, combustion and exhaust must all work in unison. Imagine trying to hook a garden hose to a fire hydrant.

[AllegroD]

chuckftboy wrote:
Tony, there is really nothing special about an OEM converter, Ford doesn't build them anyway, they are provided by one of their vendors. I think the major concern is one sized large enough for your 8-cylinder engine and fits in the space of the original.

I don't follow. What has a converter to do with the engine and what does the engine have to do with a converter?

[chuckftboy]

Tony, there is really nothing special about an OEM converter, Ford doesn't build them anyway, they are provided by one of their vendors. I think the major concern is one sized large enough for your 8-cylinder engine and fits in the space of the original.